Distant Thromboembolic Disease Diagnosed by Endoscopic Ultrasound in Pancreatic Cancer: A Case Series.

Thrombosis and cancer have a very well-known association. Pancreatic cancer has the highest risk for thrombotic events amongst gastrointestinal cancers and is a leading direct cause of death in cancer patients. We assessed the role of endoscopic ultrasound (EUS) in identifying distant thrombotic events in pancreatic cancer patients. We performed a retrospective review of all EUS cases for pancreatic cancer in two centers and assessed all remotely located thrombotic events diagnosed. In a period of 6 months, a total of 55 EUS for pancreatic neoplasm were performed and the following thrombotic events were identified in 4 patients (7.3%): pulmonary thromboembolism (75%) and vena cava thrombosis (25%). The authors present these 4 cases of thrombotic disease identified by EUS, 50% of them previously missed by noninvasive imaging. EUS evaluation is not seldom limited to the targeted lesion prior identified in other imaging studies. Vascular thrombus can be an incidental finding on EUS. If untreated, pulmonary embolism has a high overall mortality. This series underlines the importance of a systematic, station approach EUS technique, namely in the mediastinum, regardless of the clinical indication.

A trombose e o cancro têm uma associação bem conhe-cida. As neoplasias pancreáticas têm, de todos os tumores gastrointestinais, o risco mais elevado de eventos trom-bóticos e são uma das principais causas diretas de morte nestes doentes. Pretendeu avaliar-se o papel da ultrassonografia endoscópica (EUS) na identificação de eventos trombóticos à distância em doentes com neopla-sias pancreáticas. Realizámos uma análise retrospetiva de todas as EUS realizadas por neoplasias pancreáticas em dois centros e analisámos os eventos trombóticos re-motamente localizados diagnosticados. Num período de 6 meses, foram realizadas um total de 55 EUS por neopla-sias pancreáticas e foram identificados estes eventos trombóticos em 4 doentes (7.3%): 75% tromboembolis-mo pulmonar e 25% trombose da veia cava inferior. Os autores apresentam estes 4 casos de doença trombótica identificada na EUS, sendo que metade deles não tinham sido diagnosticados pelos métodos de imagem não inva-sivos já realizados. Não infrequentemente, a avaliação por EUS é limitada à lesão alvo previamente identificada por outros métodos de imagem. Os trombos vasculares po-dem ser um achado acidental na EUS. Se não tratado, o tromboembolismo pulmonar tem uma alta taxa de mor-talidade. Esta série reforça a importância de uma aborda-gem sistemática, por estação, na EUS, principalmente no mediastino, independentemente da indicação clínica.

Serum Natriuretic Peptides as Differential Biomarkers Allowing for the Distinction between Physiologic and Pathologic Left Ventricular Hypertrophy.

Given the proven utility of natriuretic peptides as serum biomarkers of cardiovascular maladaptation and dysfunction in humans and the high cross-species sequence conservation of atrial natriuretic peptides, natriuretic peptides have the potential to serve as translational biomarkers for the identification of cardiotoxic compounds during multiple phases of drug development. This work evaluated and compared the response of N-terminal proatrial natriuretic peptide (NT-proANP) and N-terminal probrain natriuretic peptide (NT-proBNP) in rats during exercise-induced and drug-induced increases in cardiac mass after chronic swimming or daily oral dosing with a peroxisome proliferator-activated receptor γ agonist. Male Sprague-Dawley rats aged 8 to 10 weeks were assigned to control, active control, swimming, or drug-induced cardiac hypertrophy groups. While the relative heart weights from both the swimming and drug-induced cardiac hypertrophy groups were increased 15% after 28 days of dosing, the serum NT-proANP and NT-proBNP values were only increased in association with cardiac hypertrophy caused by compound administration. Serum natriuretic peptide concentrations did not change in response to adaptive physiologic cardiac hypertrophy induced by a 28-day swimming protocol. These data support the use of natriuretic peptides as fluid biomarkers for the distinction between physiological and drug-induced cardiac hypertrophy.

Right adrenal gland prospective evaluation through transgastric endoscopic ultrasound: an alternative approach.

Background and aims: Endoscopic ultrasound (EUS) guided right adrenal gland (RAG) evaluation is frequently unsuccessful and, when feasible, requires a cumbersome maneuver through the duodenum. In our experience, the use of a recent ultrasound platform has enabled transgastric detection of the RAG with a simple maneuver. The aim of this study was to determine the RAG transgastric EUS detection rate and identify predictive factors for failure. Methods: Consecutive patients referred to EUS in a single center were prospectively included over a 6-month period. Success was defined as RAG transgastric EUS detection within 180 seconds. Logistic regression analysis was used to assess factors associated with failure. Results: Among 100 patients, the success rate for RAG transgastric EUS detection was 75 %, with a median maneuver duration of 45 seconds [interquartile range, 25 - 70 seconds]. Two incidental RAG lesions were detected. Of possible demographic and anthropometric predictive factors for failure, only age (OR 1.04; P = 0.04) was statistically significant on multivariate analysis. Conclusions: The transgastric EUS approach for RAG detection is simple, fast and effective.

Multinucleate cell angiohistiocytoma: a new case report with dermoscopy.

Multinucleate cell angiohistiocytoma (MCA) is a benign fibrohistiocytic and vascular proliferation usually located on the extremities. It may be underdiagnosed owing to lack of recognition by clinicians and pathologists. We report a 48-year-old man with asymptomatic grouped reddish papules on the dorsum of his right hand for 8 years. Histopathological and immunohistochemical examinations revealed features of MCA with a fibrohistiocytic cell infiltrate in the dermis and multinucleate cells in the stroma. Recently, the dermoscopy aspects of MCA have been described. We add another observation of this useful tool and correlate it with clinical evolution.

Duodenal subepithelial hyperechoic lesions of the third layer: Not always a lipoma.

Endoscopic ultrasonography is the most accurate procedure for the evaluation of subepithelial lesions. The finding of a homogeneous, hyperechoic, well-delimited lesion, originating from the third layer of the gastrointestinal tract (submucosa) suggests a benign tumor, generally lipoma. As other differential diagnoses have not been reported, echoendoscopists might not pursue a definitive pathological diagnosis or follow-up the patient. This case series aims to broaden the spectrum of differential diagnosis for duodenal hyperechoic third layer subepithelial lesions by providing four different and relevant pathologies with this echoendoscopic pattern.

Prediction of sentinel node status and clinical outcome in a melanoma centre.

Background. Sentinel lymph node biopsy (SLNB) is a standard procedure for patients with localized cutaneous melanoma. The National Comprehensive Cancer Network (NCCN) Melanoma Panel has reinforced the status of the sentinel lymph node (SLN) as an important prognostic factor for melanoma survival. We sought to identify predictive factors associated with a positive SLNB and overall survival in our population. Methods. We performed a retrospective chart review of 221 patients who have done a successful SLNB for melanoma between 2004 and 2010 at our department. Univariate and multivariate analyses were done. Results. The SLNB was positive in 48 patients (21.7%). Univariate analysis showed that male gender, increasing Breslow thickness, tumor type, and absence of tumor-infiltrating lymphocytes were significantly associated with a positive SLNB. Multivariate analysis confirmed that Breslow thickness and the absence of tumor-infiltrating lymphocytes are independently predictive of SLN metastasis. The 5-year survival rates were 53.1% for SLN positive patients and 88.2% for SLN negative patients. Breslow thickness and the SLN status independently predict overall survival. Conclusions. The risk factors for a positive SLNB are consistent with those found in the previous literature. In addition, the SLN status is a major determinant of survival, which highlights its importance in melanoma management.

Melolabial fold interpolated flap for reconstruction of complex nasal defects.

Complex surgical nasal defects are often technically difficult. We report the case of a 71-year old male diagnosed with a malignant melanoma (animal type; Breslow 1.5; Clark IV) on the right nasal ala. Radial excision with margins of approximately 1.5 cm was performed, creating a complex full-thickness surgical defect involving the free wall and margin of the right nasal ala, the right soft triangle, nasal lobe and columella, which was reconstructed using a melolabial interpolated flap, with highly satisfactory final esthetic result. Interpolated flaps are viable surgical options for the reconstruction of surgical defects for which local flaps and skin grafts are not suitable.

Melolabial fold interpolated flap for reconstruction of complex nasal defects / Retalho interpolado do sulco melolabial para reconstrução de defeitos complexos do nariz

Complex surgical nasal defects are often technically difficult. We report the case of a 71-year old male diagnosed with a malignant melanoma (animal type; Breslow 1.5; Clark IV) on the right nasal ala. Radial excision with margins of approximately 1.5cm was performed, creating a complex full-thickness surgical defect involving the free wall and margin of the right nasal ala, the right soft triangle, nasal lobe and columella, which was reconstructed using a melolabial interpolated flap, with highly satisfactory final esthetic result. Interpolated flaps are viable surgical options for the reconstruction of surgical defects for which local flaps and skin grafts are not suitable.

A reconstrução de defeitos cirúrgicos complexos do nariz é, por norma, tecnicamente difícil. Apresentamos um doente do sexo masculino, de 71 anos, referenciado após biopsia excisional de melanoma maligno de tipo animal (Breslow 1,5 mm, Clark IV) da asa direito do nariz. O alargamento excisional com margem de 1,5 cm originou um defeito complexo envolvendo a asa nasal direita, o triângulo mole direito, o lobo nasal e a columela, que foi reconstruído por retalho interpolado do sulco melolabial, com resultado cosmético final bastante satisfatório. Os retalhos interpolados são opções cirúrgicas eficazes para reconstrução de defeitos cutâneos para os quais a realização de retalhos locais não é possível e a colocação de enxertos inviabiliza um resultado cosmético aceitável.

Gastric leiomyoma and hyperplastic polyposis coli in a patient with multiple cutaneous and uterine leiomyomatosis.

BACKGROUND: Cutaneous leiomyomatosis has been associated with multiple uterine myomas and, more recently, with germline heterozygous mutations of the FH gene and certain types of renal cancer. Despite the growing amount of knowledge concerning this genodermatosis, its clinical spectrum remains incompletely characterized. OBJECTIVE: We report the observation of a patient with multiple cutaneous and uterine leiomyomatosis (MCUL) with unusual gastrointestinal manifestations. METHODS AND RESULTS: A gastric leiomyoma was diagnosed on a 38-year-old female MCUL patient on endoscopy performed because of mild dyspepsia. Furthermore, routine colonoscopy disclosed hyperplastic polyposis. Genetic testing revealed a previously not reported mutation of the FH gene. CONCLUSION: Gastrointestinal lesions such as the present ones are frequently asymptomatic and probably underdiagnosed. As the phenotypical spectrum associated with mutations of the FH gene keeps expanding, clinicians should keep in mind that, besides renal cancer, other unexpected tumors could also arise in this setting.

Perspectivas no uso da microscopia confocal in vitro na prática do cirurgião dermatológico / In vivo confocal microscopy in the daily practice of the dermatologic surgeon

Novos métodos de imagem, como a tomografia óptica de coerência, a ressonância magnética e a ultrassonografia de alta frequência vem sendo desenvolvidos para uso na dermatologia. Entre estes novos métodos, destacamos a microscopia confocal de reflectância in vivo (MCR) como a que mais tem se difundido nos grandes centros de oncologia cutânea e que recentemente mais tem gerado publicações nos grandes periódicos, por permitir resolução semelhante à histológica. A microscopia confocal in vivo tem encontrado espaço nas muitas limitações que ainda se impõem ao diagnóstico dermatoscópico das neoplasias cutâneas, especialmente lesões acrômicas ou hipopigmentadas, lesões na face ou em mucosas. Ainda, alguns estudos tem sugerido grande utilidade na avaliação de margens cirúrgicas e na determinação do melhor local para a realização de biópsias excisionais. Este trabalho prtetende descrever brevemente o funcionamento do microscópio confocal de reflectância a laser e discutir algumas perspectivas que despontam para seu uso na prática cotidiana do cirurgião dermatológico.

New imaging methods, such as optical coherence tomography, magnetic resonance and high frequency ultrasonography, have been developed for use in dermatology. Among the new methods, in vivo reflectance confocal microscopy, has presented the fastest growth in large cutaneous oncology centers and has generated the greatest number of articles in the literature recently, due to its resolution ? similar to histological resolution. In vivo confocal microscopy has been particularly useful given the many limitations of the dermoscopic diagnosis of cutaneous neoplasias, especially of achromic or hypopigmented lesions, lesions in the face or in mucous membranes. Some studies have also suggested considerable utility in the assessment of surgical margins and in determining the best area of the body for carrying out excisional biopsies. This study briefly describes how the confocal laser reflectance microscope works and discusses some of the issues that arise in its use in the daily practice of dermatologic surgeons.